Burgers and bacon have long been a match made in food heaven, but Carl's Jr. and Hardee's don't think you're getting enough bacon for your buck.

The restaurants, owned by CKE Restaurants, will now offer a Bacon 3-Way Thickburger — a black angus beef patty with lettuce, tomato and American cheese topped with three different kinds of bacon — for a limited-time only.

"Typically, if bacon is in the name anywhere, it's going to sell more," Haley said, explaining that CKE Restaurants has launched at least a dozen different bacon-inspired burgers in the last decade.

While the new burger features traditional bacon strips and crumbled bacon bits, it will also be slathered with bacon jam, a sweet-and-savory spread made from bacon, balsamic vinegar, caramelized onions and molasses — a first in the quick service restaurant industry.

Menu mentions of bacon jam have increased by 50 percent since 2013, according to Mintel, with consumers gravitating toward sweet and savory combinations, especially on burgers.

"Bacon jam is becoming a bit of a trend out there," Brad Haley, chief marketing officer for Carl's Jr. and Hardee's, told CNBC. "Bacon's popularity amazingly never seems to be diminishing in any way whatsoever."

The Bacon 3-Way Burger will sell for $4.49 for a single burger, $5.49 for a double burger and $5.49 for a one-third pound Thickburger. It can also be ordered as a combo meal with fries and a drink starting at $6.99.